Brilliant Violet™ 421-conjugat

Novel Multicolor Immunofluorescence Technique Using Primary Antibodies Raised in the Same Host Species

antibody with DIG (ChromaLink™ Digoxigenin). For IHC staining, cells or tissue sections are incubated first with unconjugated primary antibody against the first target protein followed by detection with antiprimary secondary antibody conjugated

肿瘤微环境流式结果总是不稳定？你可能忽略了这几个关键细节（二）

细胞表达水平。肿瘤组织经酶解消化后，细胞表面 Fc 受体仍保持完整。染色过程中，IgG 型荧光抗体的 Fc 段可能被这些受体非特异性捕获，从而使无关细胞产生假阳性信号。在肿瘤浸润免疫亚群分群（如 M1/M2 型巨噬、PMN-MDSC、Mo-MDSC 分型）实验中，Fc 非特异结合极易造成亚群分界模糊，低表达表面标志物的稀有细胞也容易被杂信号所掩盖。而通过常规缓冲液添加 BSA 仅能减弱疏水吸附，而不能阻断 Fc 受体与抗体Fc段之间的结合。因此，即使抗体未识别其目标抗原，也可能通过 Fc 受体介导的结合附着

聊一聊血清学研究中的表面封闭剂

. A surface blocker that performs well in one may not be suitable for another assay due to differences in the assay format, capture molecule, surface properties or the composition and physical properties of the specimens, as discussed